Archive image from page 339 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 318 REPTILIA. and conforms very closely to what exists in the class of birds. The testicles are invariably two in number, and situated in the abdominal cavity on each side of the spine, their po- sition being more or less advanced forwards according to circumstances: they are, how- ever, constantly in juxtaposition with the kidneys, beneath or in front of which they are always placed. In the Chelonians they are always found to be connected with the in- feri
Archive image from page 339 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 318 REPTILIA. and conforms very closely to what exists in the class of birds. The testicles are invariably two in number, and situated in the abdominal cavity on each side of the spine, their po- sition being more or less advanced forwards according to circumstances: they are, how- ever, constantly in juxtaposition with the kidneys, beneath or in front of which they are always placed. In the Chelonians they are always found to be connected with the in- ferior surface of the renal glands, which are here situated at the bottom of the abdominal cavity. In the Saurians they are placed in front of the kidneys on each side of the spinal column. They occupy a similar position in the Ophidian order, except that the right testis is in all serpents advanced further forwards than the left. The intimate structure of the testis is es- sentially similar in all the reptilia. Each testis Fig. 234-. M Male Organs of Generation, and Kidney of the Tortoise. (After Bojanus. M, M', the urinary bladder laid open; o, the left kidney; r, the renal capsule; 8, uriniferous tubes derived from the kidney, which by their union form the ureter; N, ureter; F, common termination of the ureter and of the vas deferens at the neck of the blad- der, close to the commencement of the urethral groove; M, ditto of the opposite side; y, the testes; c, the vas deferens; E, the bulb of the penis; G, commencement of the urethral groove, just anterior to the openings common to the ureters and the vasa deferentia. is found to consist of large fascicles of semi- niferous tubes, which are connected together by a delicate cellular tissue, and are, generally, easily separable. The seminal ducts derived from all these fascicles unite to form the com- mencement of the vas deferens, which is very tortuous and folded upon itself, so as to form an epididymus situated at the side
Size: 1519px × 1316px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1840, 1847, anatomy, archive, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, illustration, image, london_sherwood_gilbert_and_piper, page, physiology, picture, print, reference, todd_robert_bentley_1809_1860, vintage, zoology
